Compare giffgaff with T-Mobile Network
| Features |  |
 |
|---|---|---|
| Network Provider | O2 | EE |
| Check network coverage: | giffgaff coverage | T-Mobile coverage |
| 5G Network | Yes | No |
| 5th generation network. Max data speed of 10 or 20 Gb/s. | ||
| 4G Network | Yes | No |
| 4th generation network. Max data speed of 1 Gbps (1000 Mb/s). | ||
| 3G Network | Yes | Yes |
| 3rd generation network. Max data speed of 42 Mbps. | ||
| 2G Network | Yes | Yes |
| 2nd generation network. Max data speed of 0.3 Mb per second. | ||
| WiFi Calling | No | No |
| Use Wi-Fi for mobile phone calls and texts when no network signal. | ||
| 4G Calling (VoLTE) | No | No |
| Voice over LTE (4G Calling) makes clearer HD calls over 4G networks. | ||
| Data Rollover | No | No |
| Unused mobile data allowance rolled over from one month to the next. | ||
| Tethering Allowed | Yes | No |
| Tethering allows you to share your mobile internet with other devices. | ||
| eSIM | No | No |
| e-SIMs are digital virtual SIM cards downloaded onto supported mobile handsets. | ||
| Network Frequency Bands | ||
| 5G (NR) Frequency | 3500 MHz | 3500 MHz |
| 4G (LTE) Frequency | 800 / 900 / 1800 / 2100 / 2300 MHz | 800 / 1800 / 2100 / 2600 MHz |
| 3G (UMTS) Frequency | 900 / 2100 MHz | 2100 MHz |
| 2G (GSM) Frequency | 900 MHz | 1800 MHz |
About giffgaff
giffgaff is a mobile telephone network running as a Mobile Virtual Network Operator (MVNO) using the United Kingdom O2 network. Owned by O2's owners Telefónica, giffgaff was launched on 25 November 2009.
About T-Mobile
T-Mobile UK is a mobile network operator in the United Kingdom, owned by Deutsche Telekom since 1999, and originally launched as One2One.
In 2009, Deutsche Telekom and Orange SA announced that the T-Mobile network was to be merged with Orange UK in a joint venture with EE Limited to form the UK's largest mobile network.